Button-sewing machine.



R. L LYONS. BUTTON snwme momma.

APPLICATION FILED SEPT. 10, 1908 961,598; Patented June 14.1910.

5 SHBETS-BHEET 1.

R. L. LYONS.

BUTTON SEWING MACHINE. APPLICATION FILED SEPT.10, 1906.

961,508, Patented June 14,1910.

5 SHEETS-BHEBT 2Q .R. L. LYONS. 1 BUTTON SEWING MACHINE. 0211101111011 FUJI} 8221210, 1906.

961,508. Patented June 14,1910.

5 SHEETS-SHEET 3.

- Eli R. L. LYONS.

BUTTON SEWING MACHINE.

APPLICATION FILED SEPT. 10, 1906. 961,508,, Patented June 1451 910.

5 SHEBTS'-SHEET 4.

Ramp

R. L. LYONS.

BUTTON SEWING MACHINE.

APPLICATION FILED SEPT. 10; 1906.

Patented June 14,1910.

5 SHEETS-SHEET 5.

I scribed and pointed out ROBERT L. i LYONS, OF

WALTHAM, MASSACHUSETTS.

BUTTON-SEWING- MACHINE.

Application filed September i0, 1906.

through button holes formed. in a superposed fabric. 4

One object of the invention is to expand the button hole previous to the sewing operation without engaging the button hole.

Another object of t e invention is to so construct a button hole sewing machine of this nature that the button holes may be expanded by devices acting on the fabric at the sides of the button hole.

Another object of the invention is to avoid the use of button hole expanding devices located, during the sewing operation, between the button and the fabric.

Another object of the invention is to so construct, a button sewing machine that two overlapping layers of fabric may be held together as they are fed forward to the button sewing position so that the button may he sewed through the button hole.

The objects of theinvention will appear from the following de. vription.

The invention consists in such novel features of construction and (combination of part as shall hereinafter be more ifullyydcin the claim.

Figure 1, represents a side elevation of the improved button sewing macliine, parts of the same being broken away. Fig. 2, represents a plan View thereof. Fig. 35, represents a. bottom plan vie-w of parts of the same. Fig. 4-. rcyu'csents a partial section taken on line l -"4- l ig. 5. Fig. represents an end JlQW or the machine. Fig. 6, represents a. plan view of portions of the button clamp and the button hole erzpan-rler lmtton hole cxpant ted thereby. Fig. i. more? nts a front:- view of the button in the raised position, showing the Vera o cloth in position thereund r. represents .2 diaga'ai'nmatic view illus- 1 armcnt togcthc1"duri Specification of Letters Patent.

l l of Middlesex, State l he m ans tor holdin the two edges i thc' button t Patented June 14:, 1910.

Serial No. 333,940.

Fig. 9, represents 'a plan view of the same to more clearly show the manner in which the edge portions of a arment, or other overlapping fabrics on which buttons are to be sewed, are stretched between the button clamp and the tension device whereby the dragging sidewise of these edges by the weight of the garment is prevented.

Similar characters of reference designate corresponding parts throughout.

As shown in the drawings represents the bed plate of the machine having the standard 11 furnished with the arm 12 and the head 13. This bed plate 10 at the end opposite to that from which the standard 11 extends is furnished with the channel 14, of any desired length, which separates the button clamp supporting arm 15 of said bed plate from the work supporting member 16 of the bed plate having the usual needle passage. From the arm 15 depends the web 17 and from the work support 16 depend the webs 18 and 19 which term the sidesof a chamber in which parts of the operating mechanism are contained. these webs 15 and MB--19 being primarily designed to protect the articles under operation from contact with mechanism located beneath the bed plate.

In bearings of the head 13 is mounted to slidevertically the needle means, of any usual construction, 'for carrying a needle 21 and operated by means of the usual shaft 22 journaled in hearings of the arm 12 and the arm 23 pivoted to a member of said shaft 22 and to a fitting on the needle bar '20. The shaft 22 is driven in any usual manner to effect the reciprocation of the needle bar 20.

The gate 24 is pivotally mounted on the head l3 and has hearings in which the presser and lifter rod 25 is free to rotate and slide, the spring 26 located between a portion of said gate 2% and the sleeve 27, or? the laterally extending arm 28, on the rod tending to move said rod toward the work support. At the free end of the gate 24 is pivoted one the other ciid of which rod is adjust-ably scout-(l by the clamp 30 working in the curved slot of the plate 31. which is secured at one end to the upper port-ion of the vertical shaft 32 journaled in bearings and extending through the bed plate 10.

The button clamp Eels of the usual con.-

sewing operation.

end of the rod 29' bar 20 havingthe head 13 and engaging un struction except that the work supporting plate usually extendin beneath the arms 35 35 'is omitted an that on the arms 35-35 of said clamp are mounted outwardly and downwardly inclined spring arms 3636 which extend somewhat below the lower surfaces of said arms and the lower ends of which are designed to engage a fabric placed thereunder and to exert a spreading action on said fabric when the button clamp is moved downward. This button clamp is pivotally connected with the presser and lifter rod 25 to move u ward and downward, and laterally therewith to follow the movement of the (gate 24. This lateral movement is permitte by reason of the width of the guide 39 mounted on the arm 15 as said guide is considerably wider thanthe block 40, slidable in which the rear portion of the is .pivoted. Any ordinary shown as the arm 41 pivotall bu on clamp means herein mounted on er one end of presser rod 2 5 is used to of the button clamp at the positioning .of the the arm 28 on the lift the forward en times to permit. of fabric thereunder. 4 At the under side of the bed plate 10 is journaled the main shaft 42 which is furnished with the wom gears 43 and 44 an ordinary mechanism for driving this shaft 42 is utilized. Motion is transmitted from the shaft 42 by means of the gears 45 and 46 to the looper shaft 47 journaled in bearings beneath the work support 16, and furnished with the looper hook 48 Extending from the lower portion of the bed plate 10 is the stud 49 on which the gear 50 and the cam 51 are journaled to rotate together, the gear 50 meshes with the .worm 43 of the-shaft 42 and the cam 51 [works against one end of the lever 52'pivotally mounted at the under side of the bed plate, the other end of this lever 52.en ages the arm 53 extending from the sha 54,

- journaled in bearings beneath the button clamp support arm 15 and having the crank arm 56 the in 57 '0 which is engaged in a transverse earing in the block 40 whereby back and forth movement of the block 40 and the button clamp 34, connected therewith is elfected, such back and forth movement being controlled b the shape of the cam 51 which shape is determined by proposed number of stitches in each group of stitches. Pressure is exerted by the spring 54, secured to the shaft 54 and bearing a ainst the bed plate 10 to resist the rotation 0% said shaft and to hold the end of the lever 52 against the cam 51.

From the under side of thebed plate 10, adjacent the worm 44 of the shaft 42 extends the stud 58 on which is journaled the gear 59 meshing with the worm 44 and having the cam 60 which works against the pin-61 of said guide 6 formed, are

the crank arm 62 the vertical rotation of said shaft and the the plate 31- is caused to 24 toward the head 13 of the spring 13 on said ead and bearing against a part of said gate. When the recess 63 of the cam 60 is brought opposite the pin 61 movement of said pin is permitted to allow the spring 13 to force the free end of the gate 24 outward from the head 13.

The clamp 65 is designed to engage the neck ortion of a garment as shown inFigs. 8 and 9 and to this clampis fixed a flexible belt 66 which works over a pulley 67, of any usual construction and mounting, and having a weight 68 which exerts a drawing strain on the hold the edges A and B in the overlapping position shown and to stretch these edge portions flat from that portion held downward by the arms of the button clam preferably, to theend of the garment t us keeping the edges overlapping against the lateral strain of the weight of the garment. In the operation of the machine two layers, A and B of cloth, in the upper layer A ofwhich a button hole has previously been placed upon the plate 10, the but-ton hole 0 being located beneath the ends of the button clamp arms ton D is placed in position in said arms; the button clamp is now brought downward and, in this movement the spring engaging devices 3636 are brought intoengagement withthe u per layer A continued dbwnward movement of the button clamp then effecting the spreading act-ionof thelower ends of said springs 36-36 to stretch said upperlaye'r in a direction at right angles to the button hiole G as is shown in Fig 6 of the drawings and to expand the button hole. {Ihe button sewing operation now proceeds Auntil the; button is sewed to the layer B by stitches assing' through the expanded button hole. Vlien th 41 is operated to lift the button clamp the spreading springs 3636 automatically disengage from the layer A and the layers A and B are free to be fed forward to position another button hole,

The tension device herein shown is of simple' construction but I do not wish to limit myself to any particular'construction in'this fixedl at the lower end of swin g of on its pivot whereby theirod 29 (device as I am aware that various modified draw the free end of the gate against the 30131011 shaft 32 to efl'ect the partial garment or work-to 35-35 and a butof the fabric, the

e lever arm forms may be used for the purpose herein set forth.

It is noticed that the button hole need not be accurately positioned except as regards registration with the button to permit the sewing stitches hole when expanded as the button hole will be expanded if placed at any point between the ends of the springs 36-36.

to pass through the button A A senses from that herein shown without departing from the spirit; of this invention. 7

Having thus described my invention, I elaini as new and desire to secure by Letters Patent. r

In a button sewing machine the [combination with r'neans for supporting two layers of vfabric the upper or which has but'ton holes, and yielding means adapted td exert a tension on said layers a proximately in line with the button.-'holes,o a button clamp movable toward and from said fabric support, button sewing means, and fabric spreading means carried by the button clamp and acting when engaged with the upper fabric to spread the same and to expand one of the but-ton holes therein over the tensioned lower layer as and for the purpose described.

In testimon whereof I afiix my signature in presence 0 two witnesses.

RGBERT L. LYOiNS.

Witnesses t H. J. Minnnn, PHYLLIS TONER.- 

